Description:Why do many scientists consider birds to be dinosaurs? How does this impact our understanding of how dinosaurs lived? The exhibits in the Yale Peabody Museum's Great Hall and hands-on fossils specimens and casts provide a focus for discussion of these questions and recent theories, with links to the topics of fossilization, extinction, evolution and behavior. While this program focuses mainly on the fascinating prehistoric world of the dinosaurs, it also covers early birds, marine reptiles, and flying reptiles.